Craftsman 919.670070 User manual

• SAFETY GUIDELINES
• ASSEMBLY
• OPERATION
• MAINTENANCE
• TROUBLESHOOTING
• REPAIR PARTS
IMPORTANT:
Read the Safety Guidelines
and All Instructions Carefully
Before Operating
Model No.
919.670070
OWNER'S
MANUAL
Sold by Sears Canada, Inc., Toronto, Ont. M5B2B8
120/240 VOLT • 7000 WATT
GENERATOR
MGP-670070 Rev 0 12/10/99

2 — ENG
MGP-670070
TABLE OF CONTENTS
Warranty ..................................................... 2
Safety Guidelines....................................3-8
Assembly............................................... 9-12
Operation ............................................13-17
Maintenance ....................................... 17-20
Service Adjustments ............................... 20
DATE PURCHASED:
MODEL NO:
SERIAL NO:
STORE WHERE PURCHASED:
ADDRESS:
CITY:
TELEPHONE:
Record the above information about your unit
so that you will be able to provide it in case of
loss or theft.
Storage ..................................................... 20
Troubleshooting Guide............................ 21
Emissions Statement .............................. 22
Generator Parts ..................................23-29
Engine Parts .......................................30-36
How To Order Parts.................. Back Cover
FULL ONE YEAR WARRANTY ON CRAFTSMAN GENERATORS
For one year from the date of purchase, when this Craftsman generator is maintained and operated accord-
ing to the instructions in this owner’s manual, Sears will repair, free of charge, any defect in material and
workmanship.
If your Craftsman Generator is used for commercial or rental purposes, this warranty applies for only 90
days from the original date of purchase.
FULL ONE YEAR WARRANTY ON CRAFTSMAN ENGINE
For one year from the date of purchase, when this Craftsman engine is maintained and operated according
to the instructions in this owner’s manual, Sears will repair, free of charge, any defect in material and
workmanship.
If your Craftsman engine is used for commercial or rental purposes, this warranty applies only for 90 days
form the date of purchase. This warranty does not cover: Expendable items such as spark plugs and air
filters, which become worn during normal use.
Repairs necessary because of operator abuse or negligence, including damage resulting from no oil being
supplied to the engine or failure to maintain the equipment according to the instructions contained in
this owner’s manual, are not covered under warranty.
WARRANTY SERVICE IS AVAILABLE BY RETURNING THE GENERATOR TO THE NEAREST SEARS SER-
VICE CENTER. This warranty gives you specific legal rights and you may also have other rights, which vary
from PROVINCE TO PROVINCE.
Sold by Sears Canada, Inc., Toronto, Ont.
MAINTENANCE AGREEMENT
The Craftsman Warranty, plus a Maintenance Agreement,
provide maximum value for your Sears products. Con-
tact your nearest Sears store for details.
CUSTOMER RESPONSIBILITIES
Read and observe the safety rules.
Follow a regular schedule in maintaining, caring for and
using your generator.
Follow the instructions under “Customer Responsibili-
ties” and “Storage” sections of this owner’s manual.
HORSE POWER 14 HP
GASOLINE CAPACITY 7 GALLON/26.5 LITERS
OIL CAPACITY 48 OZ./1.4 LITERS

3 — ENG MGP-670070
CAUTION indicates a potentially hazardous situation
which, if not avoided, may result in minor or moderate
injury.
This manual contains information that is important for you to know and understand. This information relates to
protecting YOUR SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help you recognize this information,
we use the symbols to the right. Please read the manual and pay attention to these sections.
DANGER indicates an imminently hazardous situation
which, if not avoided, will result in death or serious
injury.
CAUTION used without the safety alert symbol indicates a
potentially hazardous situation which, if not avoided, may
result in property damage.
WARNING indicates a potentially hazardous situation
which, if not avoided, could result in death of serious
injury.
SAFETY GUIDELINES - DEFINITIONS
This product is not equipped with a spark arresting muffler. If the product will be used around flammable
materials, or on land covered with materials such as agricultural crops, forest, brush, grass, or other similar items,
then an approved spark arrester must be installed and is legally required in the state of California. It is a violation
of California statutes section 130050 and/or sections 4442 and 4443 of the California Public Resources Code,
unless the engine is equipped with a spark arrestor, as defined in section 4442, and maintained in effective
working order. Spark arresters are also required on some U. S. Forest service land and may also be legally
required under other statutes and ordinances.
This product may contain chemicals known to the state of California to cause cancer, birth
defects, or other reproductive harm. This warning is given in compliance with California Proposition 65, as
detectable amounts of chemicals subject to proposition 65 may be contained in this product.
Attempting to connect generator di-
rectly to the electrical system of any
building structure.
Back feeding electricity through a
building’s electrical system to the
outside utility feed lines could en-
danger repair persons attempting to
restore service.
Attempting to connect to the incom-
ing utility service could result in
electrocution.
Restoration of electrical service while
the generator is connected to the in-
coming utility could result in a fire or
serious damage if a isolator switch is
not installed.
Failure to use a double throw transfer
switch when connecting to a struc-
tures electrical system can damage
appliances and WILL VOID the
manufacturers warranty.
Never backfeed electricity through
a structure's electrical system.
To connect to a structure's electri-
cal system in a safe manner,
always have a Double-Throw
Transfer Switch installed by a
qualified electrician and in compli-
ance with local ordinances. (When
installing a Double-Throw
Transfer Switch, a minimum of
10 gauge wiring must be used.)
HAZARD HOW TO PREVENT ITWHAT COULD HAPPEN
RISK OF ELECTROCUTION AND FIRE
When using this product basic precautions should always be
followed including the following:
• SAVE THESE INSTRUCTIONS •
IMPORTANT SAFETY INSTRUCTIONS

4 — ENG
MGP-670070
READ AND UNDERSTAND ALL WARNINGS BEFORE
ATTEMPTING TO OPERATE GENERATOR.
Operation of generator in rain, wet,
icy, or flooded conditions.
Use of worn damaged, undersized
or ungrounded extension cords.
Placing generator on or against
highly conductive surface, such as
a steel walkway or metal roof.
Improper connection of items to
generator.
Operation of unit when damaged, or
with guards or panels removed.
Water is an excellent conductor of elec-
tricity! Water which comes in contact
with electrically charged components
can transmit electricity to the frame and
other surfaces, resulting in electrical
shock to anyone contacting them.
Contact with worn or damaged exten-
sion cords could result in electrocution.
Use of undersize extension cords could
result in overheating of the wires or at-
tached items, resulting in fire.
Use of ungrounded cordsets could pre-
vent operation of circuit breakers and
result in electrical shock.
Accidental leakage of electrical current
could charge conductive surfaces in
contact with the generator.
Exceeding the load capacity of the gen-
erator by attaching too many items, or
items with very high load ratings to it
could result in overheating of some
items or their attachment wiring result-
ing in fire or electrical shock.
Attempting to use the unit when it has
been damaged, or when it is not func-
tioning normally could result in fire or
electrocution.
Removal of guarding could expose
electrically charged components and
result in electrocution.
Operate generator in a clean, dry,
well ventilated area. Make sure
hands are dry before touching unit.
Inspect extension cords before use
and replace with new cord if re-
quired.
Use proper size (wire gauge) cordset
for application see chart in the As-
sembly section of this manual.
Always use a cordset having a
grounding wire with an appropriate
grounding plug. DO NOT use an
ungrounded plug.
Place generator on low conductiv-
ity surface such as a concrete
slab.
ALWAYS operate generator a
minimum of six feet from any
conductive surface.
Read the load rating chart and in-
structions in the Wattage Calcula-
tion section. Make sure that the
summation of electrical loads for all
attachments does not exceed the
load rating of the generator.
Do not operate generator with me-
chanical or electrical problem. Have
unit repaired by an Authorized Ser-
vice Center.
Do not operate generator with pro-
tective guarding removed.
RISK OF ELECTROCUTION AND FIRE (cont’d)
HAZARD HOW TO PREVENT ITWHAT COULD HAPPEN

5 — ENG MGP-670070
READ AND UNDERSTAND ALL WARNINGS BEFORE
ATTEMPTING TO OPERATE GENERATOR.
RISK OF FIRE
Turn engine off and allow it to cool
before adding fuel to the tank.
Equip area of operation with a fire
extinguisher certified to handle
gasoline or fuel fires.
Add fuel to tank in well ventilated
area. Make sure there are no
sources of ignition near the
generator.
Store fuel in a OSHA approved
container designed to hold gaso-
line. Store container in secure
location to prevent use by others.
Operate generator in a clean, dry,
well ventilated area a minimum of
four feet from any building, object
or wall. DO NOT OPERATE UNIT
INDOORS OR IN ANY CON-
FINED AREA.
Gasoline and gasoline vapors can
become ignited by coming in contact
with hot components such as the
muffler, engine exhaust gases, or from
an electrical spark.
Cigarettes, sparks, fires, or other hot
objects can cause gasoline or gaso-
line vapors to ignite.
Improperly stored fuel could lead to
accidental ignition. Fuel improperly
secured could get into the hands of
children or other unqualified persons.
Materials placed against or near the
generator or operating the generator
in areas where the temperature
exceeds 104° F. ambient (such as
storage rooms or garages) can
interfere with its proper ventilation
features causing overheating and
possible ignition of the materials or
buildings.
Attempting to fill the fuel tank while
the engine is running.
Sparks, fire, hot objects
Improper storage of fuel
Inadequate ventilation for genera-
tor
Never attempt to “speed-up” the
engine to obtain more perfor-
mance. Both the output voltage
and frequency will be thrown out
of standard by this practice,
endangering attachments and the
user.
Use care in filling the tank to avoid
spilling fuel. Make sure fuel cap is
secured tightly and check engine
for fuel leaks before starting
engine. Move generator away
from refueling area or any spillage
before starting engine. Allow for
fuel expansion. Keep maximum
fuel level ¼ inch below the tip of
the fuel tank. Never refuel with the
engine running.
Engine speed has been factory set to
provide safe operation. Tampering
with the engine speed adjustment
could result in overheating of attach-
ments and could cause a fire.
Spilled fuel and its vapors can be-
come ignited from hot surfaces or
sparks.
Tampering with factory set engine
speed settings.
Overfilling the fuel tank –
fuel spillage.
HAZARD HOW TO PREVENT ITWHAT COULD HAPPEN

6 — ENG
MGP-670070
READ AND UNDERSTAND ALL WARNINGS BEFORE
RISK OF BREATHING - INHALATION HAZARD
Operate generator in clean, dry,
well ventilated area. Never
operate unit in enclosed areas
such as garages, basements,
storage, sheds, or in any location
occupied by humans or animals.
Keep children, pets and others
away from area of operating unit.
Breathing exhaust fumes will cause
serious injury or death.
Gasoline engines produce toxic
carbon monoxide exhaust fumes.
HAZARD HOW TO PREVENT IT
WHAT COULD HAPPEN
Risk of Injury and Property Damage When
Transporting Generator
If generator is equipped with a fuel
shut-off valve, turn the valve to the
off position before transporting to
avoid fuel leaks. If generator is not
equipped with a fuel shut-off valve,
drain the fuel from tank before
transporting. Transport fuel only in
an OSHA approved container.
Always place generator on a
protective mat when transporting
to protect against damage to
vehicle from leaks. Remove
generator from vehicle immedi-
ately upon arrival at your destina-
tion
Fuel or oil can leak or spill and could
result in fire or breathing hazard,
serious injury or death can result. Fuel
or oil leaks will damage carpet, paint
or other surfaces in vehicles or
trailers.
Fire, Inhalation, Damage to Vehicle
Surfaces
HAZARD HOW TO PREVENT IT
WHAT COULD HAPPEN

7 — ENG MGP-670070
READ AND UNDERSTAND ALL WARNINGS BEFORE
ATTEMPTING TO OPERATE GENERATOR.
• Review and understand all of
the operating instructions and
warnings in this manual.
• Become familiar with the
operation and controls of the
generator. Know how to shut it
off quickly.
• Equip area of operation with a
fire extinguisher certified to
handle gasoline or fuel fires.
• Keep children or others away
from the generator at all times.
Always use a U.L. listed voltage
sensitive surge protector to
connect voltage sensitive appli-
ances such as TV, computer, or
stereo equipment. Failure to use
a U.L. listed voltage surge
protector will void the warranty
on your generator.
Notice: A multiple outlet strip is
not a surge protector make sure
you use a U.L. listed voltage surge
protector.
All sources of energy include the
potential for injury. Unsafe operation
or maintenance of your generator
could lead to serious injury or death
to you or others.
Any gasoline operated household
generator will incur voltage variations
causing damage to voltage sensitive
appliances or could result in fire.
Operation of generator in careless
manner.
Operation of voltage sensitive appli-
ances without a voltage surge pro-
tector.
RISK OF UNSAFE OPERATION
HAZARD HOW TO PREVENT IT
WHAT COULD HAPPEN
Raising or suspending generators
equipped with lift rings improperly
Generator could fall causing serious in-
jury or death to you or others.
Improper raising or suspending can
cause damage to the generator.
Always use proper connecting
procedures as described in this
manual when connecting cables,
chains, or straps for raising or
suspending generators equipped
with lift rings.
Always use cables, chains, or
straps rated at 2000 lbs working
load or more to raise or suspend
generator.
Generator will not operate properly
and will cause damage to the genera-
tor and could cause serious injury or
death to you or others.
Operating generator while suspended Never operate generator while
suspended or in an unlevel posi-
tion. Always operate generate on
a flat, level surface.

8 — ENG
MGP-670070
RISK FROM LIFTING
HAZARD HOW TO PREVENT ITWHAT COULD HAPPEN
The generator is too heavy to be
lifted by one person. Obtain
assistance from others before you
try to move it.
Serious injury can result from at-
tempting to lift too heavy an object.
Lifting a very heavy object.
READ AND UNDERSTAND ALL WARNINGS BEFORE
ATTEMPTING TO OPERATE GENERATOR.
RISK OF MOVING PARTS
HAZARD HOW TO PREVENT ITWHAT COULD HAPPEN
Never operate generator with
guarding or cover plates removed.
Avoid wearing loose fitting clothing
or jewelry which could be caught
by moving parts.
The generator contains parts which
rotate at high speed during operation.
These parts are covered by guarding
to prevent injury.
Contact with moving parts can
result in serious injury.
HAZARD HOW TO PREVENT ITWHAT COULD HAPPEN
During operation, touch only the
control surfaces of the generator.
Keep children away from the
generator at all times. They may
not be able to recognize the
hazards of this product.
Contact with hot surfaces, such as
engines exhaust components, could
result in serious burns.
Contact with hot engine and
generator components.
RISK OF HOT SURFACES

9 — ENG MGP-670070
ASSEMBLY
CARTON CONTENTS
1 - Generator
2 - Wheels
1 - Axle
4 - 5/16-18 x 1 3/4 "
Cap Screws
7 - 5/16-18
Lock Nuts
Parts and Parts Box for Wheel Kit Assembly
Parts Bag for Battery Installation
1 - 5/16-18 x 3.4 "
Cap Screws 1 - 5/16-18
Lock Nuts
1 - "L" Battery Bracket
2 - Battery Bolt Hold Down
1 - Black Negative Battery Cable (black)
1 - Red Positive Battery Cable (red) with battery boots
1 - Star Washer 2 - Wing Nuts
2 - Axle Spacers
2 - Bracket
1 - Cotter Pin 1 - Axle End Cap
3 - 5/16-18 x 3/4 "
Cap Screws
1 - Flat Washer
3/4 OD x 11/16 ID
2 - Handle Assemblies
1 - Louvered Heat
Deflector 4- Screws, HH #8-32
1 - Owner's Manual
*1 - Twistlock Plug L5-30P
*1 - Twistlock Plug L14-30P
* To be installed and/or used in
accordance with appropriate local electrical codes
and regulations. Refer to enclosed instructions for
proper installation.
1 - Parts Bag
NOTE: The axle is stored in one handle assembly for
shipping purposes

10 — ENG
MGP-670070
Read owner’s manual. Do not attempt to operate equipment until you have read Owner’s
Manual for Safety, Assembly, Operation, Maintenance, Storage Instructions.
REMOVE GENERATOR FROM CARTON
• Open carton from top.
• Cut carton along dotted lines.
• Remove generator through opening in carton.
• Remove parts box containing wheel kit parts.
• Cut wire tie securing handle assembly to top
frame.
• Cut wire ties securing handle assembly to side
frame. This handle assembly stores the axle
during shipping. Remove the base end cap and
slide the axle from handle assembly. Replace
base end cap with washer.
• Remove all packaging material from handle
assemblies and oil filter on engine.
• Place handle assemblies aside to be used when
assembling the wheel kit.
• Using a 1/2 inch socket remove shipping block
from under the generator head. Unscrew the bolt
and remove the wood block. NOTE: It is very
important that this is removed before starting your
generator.
IMPORTANT: Before any attempt to start your genera-
tor be sure to check engine oil (See Adding Engine Oil
paragraph in the Operation section on page 15 of this
manual.)
TOOLS NEEDED FOR ASSEMBLY
1 - Box Cutter or Knife
2 - 1/2" Wrenches
1 - Pair Wire Pliers
1 - Hammer
1 - 1/2" Socket and Socket Wrench
1 - 1/4" Socket and Socket Wrench
1 - 1" thick x 1' square piece of wood
Handle Assembly
secured to top frame
Parts Box
containing
Wheel Kit
parts
Axle is stored in
Handle Assembly
secured to side
frame
Make sure
packaging
material is
removed from oil
filter on engine
Base
End
Cap

11 — ENG MGP-670070
• Place "L" bolt (B) through top and bottom brack-
ets and secure with wing nut (C).
• Locate the solenoid on the left side of the unit.
To Prevent sparks connect
the red (positive) cable to the positive (+)
terminal before connecting the black negative
cable.
• Remove the nut from the solenoid post and place
one end of the positive (red) battery cable onto the
post. Reassemble nut and tighten securely.
• Attach the other end of the positive (red) battery
cable to the positive (+) terminal on the battery.
NOTE: Make sure red battery boots cover
positive battery cable terminals at battery and
solenoid
INSTALLATION OF BATTERY
Recommended Battery for Electric Start: 12V - 45 A H.
or 210 CCA (Cold Cranking Amps)
Purchase battery and battery hardware separately, not
included with unit.
• Place battery in rack with terminals facing towards
generator head.
• Place battery bracket (A) over battery as shown
(opposite battery terminals).
Solenoid
Nut
Negative
(-) Battery
Cable
(-) Negative Battery
Cable Connection
(-) Negative Battery Cable Connection
Star
Washer
• Attach one end of the negative (black) cable to the
negative (-) terminal on the battery.
• Attach the other end of the negative (black) cable
to the frame as shown. Install the star washer
between the cable and the frame.
GROUNDING THE GENERATOR
A grounding lug is supplied with the generator for use
when required by local electrical ordinances. Refer to
article 250 of the National Electrical Code to clarify
any needed grounding information. Your local electric
company or a certified electrician should be able to
help you with this information.
NOTE: Your engine is already grounded to the frame
by a grounding strap.
Grounding Lug

12 — ENG
MGP-670070
INSTALLING WHEEL KIT
The Craftsman Wheel Kit was designed to greatly
improve the portability of your generator.
• Place generator on level ground; drain all gas and
oil from the engine (see engine manual for correct
procedure).
• Place a 1” thick x 1’ square piece of wood on the
ground in front of the engine. With the help of
another person, tilt the generator and rest the
recoil starter on the wood. NOTE: This will
support the gasoline engine during assembly and
make assembly easier.
• Using two screws (8) and two lock nuts (9) install
the wheel bracket (5) on the bottom right side of
the engine support.
• a. Remove the locknut on the bottom of the
isolator.
b. Position wheel bracket onto the existing
screw, lining up holes in bracket with holes in
frame. Secure with the removed locknut.
c. Place screw (8) into second hole and secure
with locknut (9).
• Tap the axle cap (6) on the end of the axle (2),
without the hole, using a hammer.
• Slide one wheel (1) onto the axle with the ex-
tended hub pointed away from axle cap.
• Slide one axle spacer (3) down against the wheel
(1).
• Slide the axle (2) through the holes in the wheel
brackets (5).
• Install the second axle spacer (3) then the second
wheel (1) with the extended hub facing inward.
Drain gas and oil before
assembling the portability
kit. Failure to do so will cause damage to the
engine.
• Place the flat washer (7) against the wheel bushing
and slide the cotter pin (4) through the drilled hole
of the axle (2). Bend the cotter pin (4) to secure in
place.
• Tighten lock nuts on wheel brackets.
• Line up the handle brackets with the holes in the
frame near the receptacle end of the generator.
• Install hex screws (10) and lock nuts (9). Tighten
with a ½” wrench.
• With another person helping, carefully tilt the
generator to operating position.
• Install louvered heat deflector to the muffler using
four #8-32 HH screws. Orient heat deflector so the
vent openings are pointing toward the rear of the
engine.
IMPORTANT: To prevent damage or possible hazards,
do not orient deflector in any other position.
• The portability kit is now ready for use.
13
10
9
9
13
14 14
11 & 12
6
9
9
10
3
2
9
8
3
7
5
5
11 & 12
1
1
4
10
9
8
10
ENGINE
SUPPORT

13 — ENG MGP-670070
OPERATION
Read this Owner’s Manual and Safety Rules before operation of your Generator. Compare this illustra-
tion with your generator to familiarize yourself with the location of various controls and adjustments. Save the
manual for future references.
KNOW YOUR GENERATOR
FUEL TANK- Capacity of 7 US gallons/26.5 Liters.
CHOKE CONTROL- Used to start cold engine.
ENGINE OFF/RUN/START SWITCH- Used to start
and stop engine.
FUEL VALVE LEVER (located on engine) - Used to
shut off the flow of fuel to the engine.
ENGINE OIL FILL- Check and fill engine with oil.
AIR CLEANER- Includes filter element cartridge and
foam pre-cleaner that limits the amount of dirt that
enters the engine.
CIRCUIT BREAKER- Each receptacle has a circuit
breaker to protect the generator from overloading.
GFCI (Ground Fault Circuit Interrupter) 120 VOLT
RECEPTACLE- GFCI receptacles reduce the chance
of electrical shock by tripping it's built in circuit
breaker when it senses an imbalance in current. This
receptacle is protected by 30 amp circuit breaker.
3- PRONG 120 VOLT RECEPTACLE- Used to supply
3500 watts of electrical power and is protected by 30
amp circuit breaker.
4-PRONG 240 VOLT TWISTLOCK RECEPTACLE -
Used to supply 7000 watts of electrical power and is
protected by 30 amp circuit breaker.
FUEL TANK
120 VOLT GFCI
RECEPTACLE
FUEL CAP
FUEL SHUT
OFF VALVE
(not shown)
120 VOLT 3-PRONG
TWISTLOCK
RECEPTACLE
240 VOLT 4-PRONG
TWISTLOCK
RECEPTACLE
CIRCUIT
BREAKERS
ON/RUN/START
SWITCH
MUFFLER
CHOKE
CONTROL

14 — ENG
MGP-670070
RECEPTACLES
Your generator is equipped with:
• one 120 volt GFCI duplex receptacle protected by
a 15 amp circuit breaker
• one 120 volt 3-prong twistlock receptacle pro-
tected by a 30 amp circuit breakers
• one 240 volt 4-prong twistlock receptacle pro-
tected by two 30 amp circuit breakers
The circuit breakers are provided to protect the
generator against electrical overload. If the circuit
breaker trips, unplug electrical load from receptacle.
Let circuit breaker cool down and then push circuit
breaker button to reset.
RESET
REMETTRE
NEMA L14-30NEMA L5-30
120V 240V
120V
RESET
REMETTRE
120V 15A
RESET
RESET
TEST
TEST
TEST
MONTHLY
SEE
INSTRUCTIONS
30
15
30
LOW OIL SHUTDOWN
Your Craftsman generator engine is equipped with
Low Oil Shutdown. Low Oil Shutdown is a safety
device designed to protect your engine from damage
in the event the oil level in the crankcase is low.
If while the engine is running, the oil gets low, it will
automatically shut itself down and will not restart until
the oil is added. If the oil is low before start-up, the
generator will not start until oil is added.
NOTE: The Low Oil Shutdown mechanism is very
sensitive. You must fill the engine to the full mark on
the dipstick to inactivate this safety device.
GENERATOR CAPACITY
Exceeding the rated capacity of your generator can
result in serious damage to your generator and
connected electrical devices. You should observe the
following to prevent overloading the unit:
• Starting and running wattage requirements should
always be calculated when matching a generators
wattage capacity to the appliance or tool.
• There are two types of electrical appliances that
can be powered by your generator:
A. Items such as radios, light bulbs, television
sets, and microwaves have a "resistive load".
Starting wattage and running wattage are the
same.
B. Items such as refrigerators, air compressors,
washer, dryer, and hand tools that use an
electrical motor have an "inductive load".
Inductive load appliances and tools require
approximately 2 to 4 times the listed wattage
for starting the equipment. This initial load
only lasts for a few seconds on start-up but is
very important when figuring your total
wattage to be used.
NOTE: Some inductive appliances and tools will list
on the motor name plate, the starting and running
voltage and amperage requirements. Use the following
formula to convert voltage and amperage to wattage:
(Volts X Amp = Watts)
• Always start your largest electric motor first, and
then plug in other items, one at a time.
NOTE: On 120-volt loads the maximum starting watt-
age should NOT exceed one half of the rated generator
wattage. Example: a 7000 rated wattage generator =
3500 maximum starting wattage.
The guide is provided to assist you in determining the
appliances and tools that can be ran with the wattage
capacity of your generator.
OBTAINING ELECTRICITY FROM
GENERATOR
There are basically two ways to obtain electricity form
a generator:
• Use of extension cords directly from the generator
to the appliance, lights, tools, etc.
• Use of a double-throw transfer switch installed
directly to the main electrical supply outside of the
house.
Extension Cord
When using an appliance or tool at a considerable
distance from the generator, a 3-wire extension cord
that has a 3-blade grounding plug and a 3-slot recep-
tacle that accepts the tool's plug MUST be used in
order to reduce the risk of electrical shock. A cord of
adequate size must be used. A minimum of 12 gauge
wire size with at least a 20 amp draw can be used.
When amperage exceeds 20 amps a 10 gauge wire
size should be used.

15 — ENG MGP-670070
BEFORE STARTING ENGINE
Always check engine oil level
before every start. Running
engine low of oil or out of oil could result in
serious damage to the engine.
Adding Engine Oil
Your generator has been shipped without oil in the
engine. Begin by removing the oil dipstick and plug.
Start pouring the oil in slowly.
The engine will hold approximately 48 ounces/1.4 liters
of oil.
To check oil:
• Place engine in a level position. Clean around oil
fill and dipstick.
• Remove dipstick and wipe clean with cloth.
• Push dipstick back in and remove to check oil.
Keep oil level at FULL line on dipstick.
To add oil:
• Remove oil fill cap.
• Pour oil slowly and fill to FULL line on dipstick. Do
not overfill.
An extension cord that is hot
to the touch is overloaded.
Repair or replace damaged extension cords
immediately.
Connecting Generator To Main Electrical
Supply
Potential hazards exist when a electrical generator is
connected to the main electrical supply coming into
the house. It is at that point that the generator could
feed back into the utility company’s system causing
possible electrocution of workers who are repairing
electrical lines. To avoid back feeding of electricity into
utility systems, a double-throw transfer switch
should be installed between the generator and utility
power. This device should be installed by a licensed
electrician and in compliance with all local electrical
codes.
NOTE: When installing a Double-Throw Transfer
Switch, a minimum of 10 gauge wiring must be used.
Gasoline
To add gasoline:
• Remove gas cap.
• Add unleaded gasoline, slowly, to fuel tank.
Use clean, fresh, regular unleaded gasoline with a
minimum of 85 octane. Use unleaded fuel only. Do not
use gasoline which contains Methanol. Never mix oil
with gasoline.
Never fill fuel tank com-
pletely. Fill tank to 1/2" below the bottom of the
filler neck to provide space for fuel expansion.
Wipe any fuel spillage from engine and equip-
ment before starting engine.
• Do not overfill.
• Replace gas cap.
Never fill fuel tank indoors.
Never fill fuel tank when engine is running or
hot. Do not smoke when filling fuel tank.
Turn engine OFF and let
engine cool at least 2 minutes before removing
gas cap.
F-20 0 20 40 60 80 100
C-30 -20 -10 0 10 20 30 40
STARTING TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE
*
**
32
SAE Viscosity Grades
FULL
Full
• Replace dipstick firmly.
NOTE: When adding oil to the engine crankcase, use
a high quality detergent oil classified “For Service
SF,SG,SH,SJ” rated SAE 30 weight. Use no special
additives. Select the oil’s viscosity grade according to
your expected operating temperatures.

16 — ENG
MGP-670070
For recoil start:
• Place OFF/RUN/START switch in the RUN posi-
tion.
• Grasp handle on rope starter and pull slowly until
resistance is felt. Let the rope rewind slowly. Pull
rope with a rapid full arm stroke. Let rope rewind
slowly. Repeat if necessary.
NOTE: IF ENGINE OIL LEVEL IS TOO LOW, EN-
GINE WILL NOT START. CHECK OIL LEVEL AND
ADD IF NECESSARY.
• When engine warms up, gradually push choke
control in to the NO CHOKE position.
IMPORTANT: Allow generator to run at no load
for 5 minutes upon each initial start-up to allow
engine and generator to stabilize.
STOPPING ENGINE
• Disconnect all electrical loads.
• Turn OFF/RUN/START switch to "OFF" position.
• Close fuel shut-off valve.
IMPORTANT: Never store engine with fuel in tank,
indoors, or in enclosed, poorly ventilated areas or
where fuel fumes may reach an open flame.
To Start Your Generator
Never run engine indoors or
in enclosed, poor ventilated areas. Engine
exhaust contains carbon monoxide, an
ordorless and deadly gas.
IMPORTANT: Make sure the battery is properly
serviced, fully charged, and assembled before starting.
• Open the fuel shut-off valve.
• Pull choke control out to CHOKE position.
NOTE: No choke is required on warm engines. Push
choke control in to start a warm engine.
You MUST unplug any load
from the generator before starting to prevent
permanent damage to any appliances.
For electric start:
• Place OFF/RUN/START switch in the START
position.
NOTE: When the engine starts the switch will
remain in the RUN position.
OFF
START
RUN
ARRÊT
MARCHE DÉMARRAR
OFF
START
RUN
ARRÊT
MARCHE DÉMARRAR
OFF
START
RUN
ARRÊT
MARCHE DÉMARRAR

17 — ENG MGP-670070
MAINTENANCE
CONNECTING ELECTRICAL LOADS
• Let engine run and warm up for five minutes after
starting with no electrical load.
Connect loads in the following manner to prevent
damage to equipment:
• Connect inductive load equipment first, inductive
loads consist of refrigerators, freezers, water
pumps, air conditioners, or small hand tools.
Connect the items that require the most wattage
first.
• Connect the lights next.
• Voltage sensitive equipment should be the last
equipment connected to the generator. Plug
voltage sensitive appliances such at TV's, VCR's,
microwaves, ovens, computers, and cordless
telephones into a UL listed voltage surge protec-
tor, then connect the UL listed voltage surge
protector to the generator.
IMPORTANT: You should always add up the rated
watts of all lights, tools and appliances you are
powering at one time. This total should not
exceed the rated capacity of you generator or
circuit breaker rating of the receptacle supplying
power.
CUSTOMER RESPONSIBILITIES TABLE
Note 1: Change oil after first five (5) operating hours, every 25 hours if operating under heavy load or high ambient
temperature, and every 50 operating hours thereafter.
Note 2: Clean more often under dusty conditions.
MAINTENANCE TASK
Every 25
Hours of Every
Season
Every 50
Hours of Every
Season
Every 100
Hours of Every
Season
Check oil level
Change oil
Change oil filter
Service air pre-cleaner
Service air cleaner cartridge
Spark arrester ( if equipped)
Clean cooling system
Check spark plug
Replace in-line fuel filter
GFCI (ground fault circuit interrupter)
Prepare unit for storage Prepare unit for storage if it is to remain idle for more than 30 days.
Every 8
Hours or
Daily
X
X
See Note 1
See Note 2
X
X
X
X
See Note 2
See Note 2
Monthly

18 — ENG
MGP-670070
GENERAL RECOMMENDATIONS
The warranty of the generator does not cover items
that have been subjected to operator abuse or negli-
gence. To receive full value from the warranty, opera-
tor must maintain the generator as instructed in this
manual.
Some adjustments will need to be made periodically to
maintain your generator.
GENERATOR MAINTENANCE
Your generator should be kept clean and dry at all
times. The generator should not be stored or oper-
ated in environments that include excessive moisture,
dust or any corrosive vapors. If these substances are
on the generator, clean with a cloth or soft bristle
brush. Do not use a garden hose or anything with
water pressure to clean the generator. Water may
enter the cooling air slots and could possibly damage
the rotor, stator and the internal windings of the
generator head.
All adjustments in the Maintenance section of this
manual should be made at least once each season.
ENGINE MAINTENANCE
NOTICE: Maintenance, replacement or repair of
the emission control devices and systems may be
performed by any nonroad engine repair establish-
ment or individual. However, to obtain no charge
repairs under the terms and provisions of the
engine manufacturers warranty statement, any
service or emission control part repair or replace-
ment must be performed by a factory authorized
dealer.
Oil
• Oil level should be checked prior to each use and
at least every 8 hours of operation. To check oil
see Adding Engine Oil paragraph in the Opera-
tion section of this manual.
Changing Engine Oil
For a new engine, change oil after the first 5 operating
hours. Thereafter, change oil after every 50 hours of
operation.
Change the oil while the engine is still warm. The oil
will flow freely and carry away more impurities. Make
sure the engine is level when filling, checking or
changing oil.
Change the oil as follows:
• To keep dirt, grass clippings, etc. out of the
engine, clean the area around the drain plug and
dipstickbefore removing it.
• Disconnect spark plug wire and keep away from
spark plug. Disconnect battery at negative
terminal.
• With engine off but still warm, remove oil drain
plug and drain oil into appropriate receptacle.
Change Oil Filter
Change oil filter after every 100 hours or every season.
• Drain engine oil and remove oil filter.
Used oil is a hazardous
waste product. Dispose of used oil properly.
Do not discard with household waste. Check
with your local authorities, service center, or
dealer for safe disposal/recycling facilities.
• Before installing new filter, lightly oil filter gasket
with fresh, clean oil.
• Screw filter on by hand until gasket contacts oil
filter adapter. Tighten 1/2 to 3/4 turn more.
Used oil is a hazardous
waste product. Dispose of used oil properly.
Do not discard with household waste. Check
with your local authorities, service center, or
dealer for safe disposal/recycling facilities.
• Reinstall drain plug. Remove oil fill cap.
• Fill the crankcase with new oil of the proper type
(See Adding Engine Oil in the Operation section),
to the FULL mark on the dipstick. Always check
the level with the dipstick before adding more oil.
• Reinstall the oil fill cap or plug and tighten se-
curely.
Oil Drain Plug
FULL
Filter

19 — ENG MGP-670070
• Add fresh oil. See Add Engine Oil in the Opera-
tion section of this manual.
• Start and run engine at idle to check for leaks.
• Stop engine. Re-check oil level, add oil if re-
quired.
Air Cleaner
Do not use pressurized air
or solvents to clean cartridge. Pressurized air
can damage cartridge; solvents will dissolve
cartridge.
To service air cleaner follow these steps:
• Unhook clips on both sides of cover and remove
cover.
• Remove knob and plate. Carefully remove air
cleaner assembly to prevent debris from entering
carburetor.
• To clean pre-cleaner and cartridge:
Pre-cleaner
• Separate from cartridge and wash in liquid
detergent and water.
• Squeeze dry in a clean cloth.
• Saturate in engine oil. Squeeze in clean,
absorbent cloth to remove all EXCESS oil.
Cartridge
• Gently tap on a flat surface.
• Reassemble clean (or new ) pre-cleaner on
clean (or new) cartridge.
• Reinstall air cleaner assembly, plate and knob
in body.
• Replace cover and reattach clips to body.
Clips
Knob
Cover
Plate
Cartridge
Body
Pre-cleaner
Clean Cooling System
Debris may clog the engine's air cooling system.
Remove blower housing and clean area shown to
prevent overheating and engine damage.
Clean and Replace Spark Plug
Check spark plug yearly or every 100 operating hours.
• Clean area around spark plug.
• Remove and inspect spark plug.
• Replace spark plug if electrodes are pitted, burned
or porcelain is cracked.
• Check electrode gap with wire feeler gauge and set
gap .030 if necessary.
• Install spark, tighten securely.
Replace Fuel In-Line Filter
• Disconnect spark plug wires and keep away from
spark plugs.
Drain fuel tank or close fuel
shut-off valve before replacing fuel filter.
• Replace in-line fuel filter.
.030" (0.76mm)
Wire Gauge
Spark Plug
Clean
In-line Fuel Filter
Body

20 — ENG
MGP-670070
STORAGE
If you are going to store your generator for more than
30 days, use the following information as a guide to
prepare the generator for storage.
Never store generator with
fuel in the tank indoors or
in enclosed, poorly ventilated areas, where
fumes can reach an open flame, spark or pilot
light as on a furnace, water heater, clothes
dryer or other gas appliances.
Engine Preparation
• Add fuel stabilizer to fuel tank to minimize the
formation of fuel gum deposits during storage.
• Run engine at least 10 minutes after adding
stabilizer to allow it to enter the fuel system.
• Disconnect the spark plug wire and remove the
spark plug.
• Add one teaspoon of oil through the spark plug
hole.
• Place rag over spark plug hole and pull the recoil a
few times to lubricate the combustion chamber.
Replace the spark plug, but do not connect the
spark plug wire.
NOTE: If a fuel stabilizer is not used, all gasoline must
be drained from the tank and carburetor to prevent gum
deposits from forming on these parts and causing pos-
sible malfunction of the engine.
Generator
• Clean the generator as outlined in the Generator
Maintenance paragraph on page 18.
• Check that cooling air slots and openings on
generator are open and unobstructed.
Battery
• Store battery as described by the battery manu-
facturer.
NOTE: After storing battery for a long period of time it
may lose it's charge. If the battery loses it's charge,
manually start the engine with the battery connected.
The engine will recharge the battery as it runs.
CARBURETOR
The carburetor of your generator is pre-set at the fac-
tory. The carburetor should not be tampered with. If your
generator is used at an altitude in excess of 4000 feet
performance may be affected. If so consult with your
nearest Craftsman Service Center regarding high altitude
set changes.
GOVERNOR
Your engine governor maintains the constant operating
speed of your generator. DO NOT tamper with the en-
gine governor which is factory set for proper engine
speed.
Low engine speeds impose a
heavy load on the engine and
when sufficient power is not available the engine
life could be shortened.
SERVICE ADJUSTMENTS
Over-speeding your engine above factory high speed set-
ting can be dangerous and could possibly cause per-
sonal injury or property damage. If you believe the en-
gine is running too fast or slow, take your generator to a
Authorized Craftsman Service Center for repair and ad-
justment.
GFCI receptacle (Ground Fault Circuit
Interrupter)
For maximum protection against electrical shock the
GFCI should be tested monthly.
To test:
1. Depress the TEST button. The RESET button
should extend. If the RESET button does not
extend, notify a Authorized Service Center.
2. To restore power, depress the RESET button firmly
into the GFCI unit until an audible click is heard. If
reset properly, the RESET button is flush with the
surface of the test button. When the button stays
in, the power is ON.
RESET
RESET
TEST
TEST
TEST
MONTHLY
SEE
INSTRUCTIONS